دافع لف  شركات مصنعة، تجار، موردون، مزودو خدمات

SchuF Fetterolf designs and manufactures industrial valves that control,
isolate,divert, or sample gases, liquids, slurries or powders.
SchuF was established in 1911 in Germany and now has design and
manufacturing plants in the United States, Ireland, India, Germany and
Brazil.
The founders of SchuF invented the lift plug, the ram and the disc
bottom outlet valve categories.
Today, SchuF has a broad product portfolio based on these initial
inventions as well as further developments which include the first
diverter valve and the unique outward opening (X-Flash) control valve.
SchuF Fetterolf Valve Portfolio
Our range of industrial valves are ideal for difficult or severe service
conditions found in the chemical, petrochemical, polymer, oil, gas,
refining and offshore industries.

Crane Sealing Technology Co., Ltd. has been committed to the research and development and production of rotating transmission fluid solutions; the main products are: rotary joints, swivel joints, rotary ball joints, hydraulic slip rings, hydraulic multi-channel rotary joints/swivel joints, high-pressure hoses Connectors, etc.
Qingdao Crane Sealing Technology Co.,Ltd.
It is widely used in papermaking, rubber, chemical, textile printing and dyeing, iron and steel, metallurgical equipment, wind power generation, construction machinery and other industries. For this purpose, it provides a complete after-sales service system and becomes the best partner for many customers.
Crane's products are used in almost infinitely wide fields, and are most widely applicable to various materials, viscosity, temperature, pressure and speed applications. Rotary seal is a unique and specialized product because it must be able to withstand very high pressure while rotating at very high speeds. To achieve this, it is necessary to make the sealing surface achieve a nearly perfect fit, that is, the seal must be slightly overlapped, and can rotate smoothly and stably and friction is reduced to a minimum, in order to extend the service life and ensure no leakage.

We are your high-performance partner for vacuum pumps, compressors, pressure vacuum pumps and side channel blowers.
All
from a single source. We carry on a comprehensive and reasonable priced
product range of high quality vacuum pumps, compressors, pressure
vacuum pumps and side channel blowers of all leading manufacturers and
brands.